Pathing is broken

[Freakish]

Befallen, third floor at the door next to the elf skeleton. Mobs run through walls (not the fake ones).
Sebilis, disco camp. If you go to the room where the frenzied pox scarab is and try to pull it out of its room and round the corner to where Grulpinort spawns he warps to shrooms.
Sebilis, disco camp. Pulling froglok pickler and associates and they will come straight through the wall at you.
Chardok, Royals area. The hall parallel to king room. If you get aggro on the king room (Eye of Zomm, send a pet in, whatever) they will randomly run through the wall to get you. Some do, some don't.
Veeshan's Peak. Dragons will walk -through- the bridge occasionally.
Highpass Hold. Goblins just run through walls to get you.


This is happening everywhere that i've gone to lately.